9987213312

Names of 9987213312

• Cardinal: 9987213312 can be written as Nine billion, nine hundred eighty-seven million, two hundred thirteen thousand, three hundred twelve.

Scientific notation

• Scientific notation: 9.987213312 × 10⁹

Factors of 9987213312

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 31895

Divisors of 9987213312

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 17 18 24 32 34 36 48 51 64 68 72 96 102 128 136 144 153 192 204 256 272 288 306 384 408 512 544 576 612 768 816 1024 1088 1152 1224 1536 1632 2048 2176 2304 2448 3072 3264 4352 4608 4896 6144 6528 8704 9216 9792 13056 17408 18432 19584 26112 31873 34816 39168 52224 63746 78336 95619 104448 127492 156672 191238 254984 286857 313344 382476 509968 541841 573714 764952 1019936 1083682 1147428 1529904 1625523 2039872 2167364 2294856 3059808 3251046 4079744 4334728 4589712 4876569 6119616 6502092 8159488 8669456 9179424 9753138 12239232 13004184 16318976 17338912 18358848 19506276 24478464 26008368 32637952 34677824 36717696 39012552 48956928 52016736 65275904 69355648 73435392 78025104 97913856 104033472 138711296 146870784 156050208 195827712 208066944 277422592 293741568 312100416 416133888 554845184 587483136 624200832 832267776 1109690368 1248401664 1664535552 2496803328 3329071104 4993606656 9987213312
• Sum of all divisors σ(n): 30542623020
• Sum of proper divisors (its aliquot sum) s(n): 20555409708
• 9987213312 is an abundant number, because the sum of its proper divisors (20555409708) is greater than itself. Its abundance is 10568196396

Bases of 9987213312

• Binary: 1001010011010010001100100000000000₂
• Hexadecimal: 0x25348C800
• Base-36: 4L64N40

Squares and roots of 9987213312

• 9987213312 squared (9987213312²) is 99744429739390009344
• 9987213312 cubed (9987213312³) is 996168896491084592080201187328
• The square root of 9987213312 is 99936.0461094995
• The cube root of 9987213312 is 2153.5160288929

Scales and comparisons

• 9,987,213,312 seconds is equal to 317 years, 29 weeks, 1 day, 17 hours, 55 minutes, 12 seconds.
• To count from 1 to 9,987,213,312 would take you about six hundred thirty-five years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 9987213312 cubic inches would be around 179.5 feet tall.

Recreational maths with 9987213312

• 9987213312 backwards is 2133127899
• The number of decimal digits it has is: 10
• The sum of 9987213312's digits is 45
• More coming soon!